Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Rochester, NH

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-923 3 MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2010-05-03   
603-923 4 MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-923 5 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2012-09-01   
603-923 7 MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-06-28   
603-923 8 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2010-04-12   
603-923 9 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2009-06-08   
603-948 A ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-948 0 MNCHNHCOCM1  5562 METROPCS, INC. 122   2011-03-29   
603-948 1 ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2009-09-20   
603-948 2 ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-13   
603-948 3 MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-05-24   
603-948 4 MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-01-04   
603-948 5 MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-05-01   
603-948 6 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-03-26   
603-948 7 MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-11-01   
603-948 8 MNCHNHCOCM1  5562 METROPCS, INC. 122   2013-10-19   
603-948 9 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-09-24   
603-973 A MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 0 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-08-05   
603-973 1 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 2 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 3 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 4 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 5 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-12-09   
603-973 6 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 7 DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2012-09-22   
603-973 9 MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-994 A PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      

<< 1 2

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.